Can-soldering machine



(No Model.) 7 SheetsSheet 1,

v C. W. SLEEPER.

GAN SOLDERING MACHINE.

No. 372,871. Patented Nov. 8, 188'7.

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Patented Nov. 8', 1887.

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No. 372,871. Patented NOV. 8, 1887.

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CAN SOLDERING MACHINE.

No. 372,871. Patented Nov.-8, 1887;

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CAN SOLDERING MACHINE. 7

No. 372,871. Patente d yov. 8, 1887.

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@W'Zfia zl/ fileyaer UNITED STATES PATENT OFFICE.

CHARLES W. SLEEPER, OF COATICOOK, QUEBEC, CANADA, ASSIGNOR TO THEAUTOMATICCAN MACHINE COMPANY, OF BOSTON, MASSACHUSETTS.

CAN-SOLDERING MACHINE.

SPECIFICATION forming part of Letters Patent No; 372,871, dated November8, 1887.

Application filed September 25, 1886. Serial No. 214,533. (No model.)

-of Coaticook, county of Stanstead, and Prov-- ince of Quebec, Canada,have invented an Improvement in Can Soldering Machines, of which thefollowing description, in connectionwith the accompanying drawings, is aspecification, like letters on the drawings represent- I ing like parts.

This invention is intended as an improvement upon the machinerepresented in United States Patent N 0. 24,7 63, to which reference maybe had.

In the machine herein to be described the mechanism for feeding thesheets of tin to be made into cans has been simplified and im-. proved,in order that the sheets of tin maybe accurately fed, and provision hasbeen made for applying soldering-fluid to one edge of the sheet, wherethe same is to be overlapped in soldering the can-body.- The cutting-offtool employed to sever'th'e soldering-wire has been arranged topassthrough a box or receptacle containing rosin, so that the solderingwire,together with some rosin, is deposited upon the can'body at that edge ofthe same which is overlapped, as usual in the formation of thelongitudinal or body seam. To straighten the soldering-wire before it isapplied to the surface to be soldered, I have provided a straighteningdevice consisting, essentially, ofahinged plate supported by a spring,the strength of the spring being overcome by the pressure against theplate of the solder-wire acted upon by the cutting-off blade thepressure required to depress the plate being in excess of that requiredto straighten the soldering-wire. Each mandrel upon which the can-bodyis shaped is provided at its upper side with a strip or piece ofaluminum, the said strip receiving upon it that part of the can-bodywhere its edges are overlapped tov be soldered, the edges of the clampbeing also re-enforced by aluminum strips, to thus prevent the adhesionof solder to either the mandrel or to the clamps. I have obtainedverygood results as to preventing the adhesion of solder to the mandrel byemploying therein a strip of porcelain. The soldering-i-ron, in additionto its movement down upon the solder, has a longitudinal or to-andfromovement approximating the usual hand motion of a soldering-iron, suchmovement acting to rub the solder into or upon the seam.

To obviate the overrunning of the intermittingly-rotating table,which,when moved, goes at high speed, I have provided the machine with achecking device consisting, essentially, of a lever or arm acted upon bya spring, the said lever being elevated into working position justbefore the rotation of the table is commenced, so that the lower end ofthe bracket, depending from the rotating table immediately below themandrel containing the tin sheet next to be soldered in the productionof a can-body, strikes against the said lever and turns the same in adirection to stretch the said spring, the latter serving as a check .toprevent overrnnning of the movement of the table beyond the point towhich it is moved by a positively-acting pawl. The rotating table,carrying the said mandrels, is in practice provided with a like bracketunder each mandrel,each bracket serving to guidea rod which lifts thecenter block of the former, and also a rod provided with a yoke whichserves to close the jaws of the former as the latter shapes the sheet oftin to the mandrel. I have also provided the machine with mechanismwhereby each former (the table having arrived in the proper position forthe discharge of a completed can-body) is positively lowered to avoidbreaking the clamps, as might happen provided the formers were permittedto drop quickly by gravity.

Figure 1 is a top or plan view of a machine embodying the invention tobe herein described, some of the formers being omitted from themandrels. Fig. 2 is a partial lefthand end view of the machine, theposition occupied by the feeder being considered the front, the bracketsand formers being omitted from all but one mandrel. Fig.3 is a detail ofthe devices for moving the checking-lever, the said figure also showingthe lower end of one of the depending brackets. Fig. 4 is asectional'detail, chiefly to show the devices employed to raise the rodsfor operating the formers and for moving the lever employed to actuatethe slide in the sheet-feeding mechanism. Fig. 5 is a sectional detailshowing the cam and its co-operating arm to move the rock-shaft carryingthe lever shown in Fig. 4,

the said figure also showing the lever for operating thepressing-lingers employed in the feeding mechanism. Fig. 6 is a top orplan view, on a large scale, of the tin-feeding mechanism. Fig. 7 is asection of Fig. 6 in the dotted line :0 m. Fig. 8 is a section of Fig. 6in the line :12 m. Fig. 9 is a section of Fig. 6 in the line so as".Fig. 10 is a section of Fig. 9 in the line a m". Fig. 11 shows a sheetof tin with one edge flanged where it is to overlap the opposite edge ofthe sheet after the latter has been applied to the former. Fig. 12 is anenlarged side elevation of part of the machine, chiefly to show a formerand devices to operate it. Fig. 13 is a right-hand end elevation of Fig.12. Fig. 14 isa detail of the foot removed from the bottom of thebracket in Fig; 12. Fig. 15 is a detail in top or plan view of the guidefor the yoke employed to close the jaws of the former. Fig. 16 is across-sectional View of the solder-cutting device in place in therosin-feeding box, the said figure also showing the straighteningdevices for the solder-wire. Fig. 17 is a seeu tional detail taken belowthe line w of Fig. 2,

chiefly to show the operation of the checking device for the table. Fig.18 is a detailed view taken from the right-hand end of the machine toshow the devices for gradually lowering the former andsome of the partsfor operating the soldering-iron; and Fig. 19 shows a portion of thetable, one mandrel, and the former lowered below it.

A represents the frame-work of the machine, it being of suitable shapeto sustain the working parts, and h is the main camshaft. The cam-shafthas a gear, A, which is engaged by a gear, A, at the inner end of thedrivings'naft A, provided with a suitable pulley, A*, which will bedriven in usual manner.

The table (1, having at its under sideasleevelike post, a, is fittedover a post, (1, held in bearings (1 attached to the frame-work. Thelower end of the sleeve (1 has attached to it, by a bolt, (1, a disk, awhich is provided with suitable holes or notches for the engagement withit of a pawl, a, pivoted upon an upright level or pawl-earner, a pivotedat d on a cross-bar of the frame-work, said pawl being moved in thedirection of the arrow on it (see Fig. 2) by a cam, d, (see Fig. 4,)which acts upon a roller-stud, d, attached to the pawlcarrier of, thepawl-carrier if having an arm, a, which is acted upon by the cam d tomove the pawl-carrier in the opposite direction. The pawl a, by itsengagement with the disk a rotates the table a intermittingly, the saidtable being locked in position after each step by means of a lockingdevice, A (see Fig. 1,) made as aspring-arm, attached to a rigid part ofthe frame-work by a bolt, A, the said locking device being lifted torelease it from a notch, 5, in the table a by means of a lifting-rod, 0jointed to one end of the lever 0, pivoted at 0 and acted upon by a cam,0, (see Fig. 2,) fast upon the left-hand end of the shaft h.

Thetablea has attached to it a series of mandrels, b, extendingtherefrom radially, each mandrel at its upper side being provided, asshown best in Figs. 2 and 12, with astrip, 103, of aluminum, that metalhaving, as I have discovered in practice, no affinity for solder. Eachmandrel, as in the patent herein referred to, has at itssidesgrooves,through which move the arms 15 of an ejector employed to discharge thesoldered can-body from the mandrel. Each ejector, composed of the arms15 and sliding head 16, provided with rollers 14, is in construction andoperation the same as described in the said patent, and need not beherein further referred to.

The table a, below each mandrel b, is provided with a depending bracket,A having a guide, A, and a foot, A. These guides and feet serve asguides for the rod p, employed to lift the formers, to be described, andthe shank rof the yoke r, the latter having arms r, provided,preferably, with rolls 0, which act to close the jaws of the former asthe yoke is raised, as will be described, said rolls at such time actingupon the lugs c", attached to the jaws of the former. Each former iscomposed of a center piece, a, pivoted at c to the lug c of the hanger Aand of twojaws, c, pivoted upon the center piece, 0, by the pivots 0*.

Referring to the tin-feeding mechanism. 172. represents a sliding plate,the ends of which are made to enter grooves in vertical plates 1,constituting part of a box secured to and extending from the front sideof the frame-work A, the said sliding plate having at its upper sideprojections m, which serve as rests for the sheet, T, of tin to beformed into a canbody. the said sheet lying upon the said rests while itis being moved forward from the said box into position between one ofthe mandrels b and a former, a a", which former at such time is loweredand open, as in Fig. 19, and also as shown in Fig. 1, directly oppositethe tinfeeding mechanism.

The sliding plate m is provided with preliminary feeders m, (shown asbars attached thereto by screws 21,) the forward ends of the saidfeeders m receiving against them the rear edge of the sheet of tin to befed into position between the mandrel and former. Each rest in, nearestthe sliding plate l, has a suitable stud, 31, (shown by dotted lines,Figs. 6 and 7,) which serves to support the secondary feeders 32, (seeFigs. 1, 6, and 8,) each secondary feeder being normally held forwardbyaspring, 33, connected to a stud, 34, projecting from one side of thesaid secondary feeder, the rear end of the said spring being attached tothe sliding plate m by a screw, 35. The upper ends of the secondaryfeeders 32 stand normally a little above the top of the rests m, so thatthe ends of the said feeders may catch upon the sheet of tin to give toit its second step forward, the springs 33 serving to prevent bending orindenting the forward end of the sheet of tin asitis pushed intoposition between the lIO in the said detents, the latter having beveledfeet, as shown in Fig. 7, which are acted upon and lifted by the sheetof tin as the latter is being pushed forward by the feeders in, thedetents so lifted by the sheet of tin falling behind the edge of thesaid sheet as the said sliding plate-marrivesjin itsforward position oras the feeders m complete their forward stroke, the said detents actingto hold the said sheet from being carried backward during the backwardmovement of the said sliding plate m, the backward movement of the saidsliding fplate being alwayssufiicient to carry the points of thesecondary feeders 32 behind the rear edge of the sheet.

The cross-bar Z has, attached to it two presser-feet, 43. made assprings, and also a guide, the said presser-feet acting to keep thesheet of tin pressed down upon the rests m, the guide 9 being so locatedas to insure the entrance of the forward edge of the sheet of tincorrectly between the former and a man drel, the said guide 9 actingupon the upper side of the sheet of tin. I The crossbar Z also hasattached to it, by screws 145, one member, 45, of a tin-creasing device,the other member consisting of an edge-lifter, 46, having an elevatedportion, 44, the said lifting portion being attached to one of the sideframes, Z, by a screw, 47, the said creasing device acting to bend orcrease the sheet of tin at 48, as shown in Fig. 11, the edge of the tinso bent being adapted to overlap the other edge of the sheet when thelatter is folded about the mandrel to be soldered in the formation ofthe longitudinal seam of the can-body, the creased edge overlapping theplane edge, so as to form a closer joint than were the edge of the sheetnot so creased. 4

The side frame, Z, has a lug, 49, see Fig. 7,)

which receives a holder, 9 made of glass'or other suitable material, itcontaining solder ing-fluid., The holder g is provided with a rod, ginserted loosely into it, the other end of the rod-being made to act asa valve- The solder-fluid may be of any ,usnal kind. The lower end ofthe valve-rod g normally rests upon the arm 9*, pivoted at 50, andprovided at its lower end with a brush, 51.

As the sheet of tin is pushed forward, as described, by the secondaryfeeders 32,-it acts against the corner52 of the lever g, lifting itsufficiently to raise the valve-rod g and let out from the holder 9 aportion of the solderingflnid, which runs down the valve-rod upon thelever dand down the said lever into the brush, the latter applying thesoldering-fluid to the sheet of tin near one edge. While the sheet oftin is being fed forward by the secondary feeders 32 the former isdepressed and its jaws are opened, leaving a clear open space betweenthem and the mandrel.

Each sheet of tin is laid upon the rests m by hand, with its edge infront of the feeders m and just before the sliding plate m is movedforward fingers 53, attached to a rock-shaft, 54, are thrown down uponthe upper side of the sheet, thus holding it down upon the rests onwhile being fed forward by the feeders of.

The rock-shaft 54 outside the plates Z has a crank, 55, to which isattached a connectingrod,-56, jointed to a lever, 57, pivoted at 58 tothe framework A, the said lever being acted upon at the proper time by astud, 59, (shown in dotted lines, Figs. 2 and 5,) attached to a cam, 60,secured to the shaft h.

The sliding plate m derives its movement from the cam 60, grooved at itsside, as shownin Fig. 5, the said groove receiving in it a roller orother stud, 61, attached to the lever 62, secured to a rock-shaft, 63,having suitable bearings in the frame-work A, the said rockshaft havingsecured to it a second lever, 64, which, by a link, 65, is connected toa lug or carat the lower side of the sliding plate 1n.

To strengthen the parts just described and insure steady and uniformmotion of the levers 62 and 64, I have provided the lever 62 with theprojection 163 and the lever 64 with the projection 67, and I haveconnected the said two projections by a bolt, 68.

After the sheet of tin has been fed into position between a mandrel anda former, the rod p is acted upon by a rod, 10 to lift the central part,c, of the former. This rod p made movable in guides B B is connectedwith a lever, p pivoted at B and acted upon by a cam, 19", on the shafth. Next, the jaws have to be closed about the mandrel to bend the sheetof tin between them and the mandrel about the mandrel. To do this theyoke o is raised by the act-ion upon the lower end of the rod 7* of therod 1, also made movable in the said guides B B the said rod i beingjoined by a link, 1", to one end of the lever 80, also pivoted at B, thesaid lever being acted upon and lifted by a rollerstud, 81, of an armconnected with the shaft h, as shown best in Fig. 4. As the yoke r islifted, the rolls 0 of the arms r act upon the projection o and closethe jaws of the former closely about the sheet of tin upon the mandrel.The edges of the jaws, as at 162, and shown only in Fig. 13, arerepresented as provided with the metal aluminum, so that the solder willnot adhere to the edges of the said jaws.

Instead of the aluminum strip 103,1 might use, but not with as goodresults, a strip of porcelain.

The notched ends of the guide or bracket A, attached to thebracket A bya bolt, A, constitute a guide for the arms 7' of the yoke W, and to easethe movement of the said yoke and prevent binding I have provided thelug A with an anti-friction roller, A. Each rod 0" near its lower end isn'otched or cut away to form a shoulder, as 262, to be engaged by a dog,82, pivoted at 165 on the plate A, and acted upon by a spring, 83, thesaid dog serving to hold the rod r and yoke elevated to retain thejawsof the former about the sheet of tin bent about the mandrel b until inthe rotation of the table a the can-body arrives in position to bedischarged, when the dog meets the upright 84 and is turned aside,releasing the rod r, which then descends by gravity. At the time thatthe rod 1' is so released its lower end has been brought into positionby the rotation of the table a to stand just above the upper end of theinclined and curved track 85, and thereafter, in the further rotation ofthe table a, the rod '2" travels gradually down the said track,gradually lowering the jaws c" c. If for any reason the yoke should bestuck, the curved or inclined lip or plate 86,fixed to theupright84,will strike the rollerstud 87. The downward position of therod 12 is determined by a pin, 144, therein, which meets the lug A". Therod 1) is permitted to descend immediately after it has been elevated tolift the center piece, 0.

A sheet of tin coated along one edge with soldering-fluid having beenfed, as described, between a former and a mandrel, and the former closedto fit the sheet of tin to the periphery of the mandrel and cause oneedge of the sheet to overlap the other edge, the table is turned onestep to place the mandrel on which the sheet of tin is held by theformer in position to have rosin and solder applied to it where theoverlapping edge is to be soldered to the sheet. To accomplish this, Ihave provided the cam-shaft h, next the cam 0, with a can] projection,t, (see Fig. 2,) which acts upon a lever, t pivoted at t", the free endof which leverhas attached toit alink, 29, which link at its upper endis joined to the outer end of a lever, t, pivoted at t upon a rigid partof the frame-work, the said lever having attached to it, by suitablescrews, (see Fig. 2,) the solder-cutter t the same being a flat blade ofsubstantially the length of the solderingwire 8 to be deposited upon thecan-body wrapped about the mandrel b, the said cutter 45 working througha slot in a rosin-holder, t, made as a box slotted longitudinally at itsbottom and attached to a rigid part of the frame A, the saidsolder-cutter rising sufficiently far at each ascent to permit a portionof the rosin, t, therein to descend into a pocket (see Fig. 16)justabove the spring-plate t hinged or pivoted, as at t", and having at oneedge an arm, t", which is acted upon by a suitable spring, i", tonormally keep the said plate in the position shown in the said figure.The soldering-wire 8, fed longitudinally into the said pocket, as willbe described, and as practiced in the patent referred to, has a quantityof rosin deposited upon it while the cutter t is elevated, and as thesaid solder-cutter descends to cut from the solder-wire s a sufficientlength of solder for the can to be soldered the said cutter pushes thesaid wire 8 down upon the plate t with a force sufficient to straightenthe solder-wire before the strength of the spring i is overcome, thesaid cutter in its further downward movement overcoming the pressure ofthe said spring t, causing the plate t to descend and uncover the bottomof the said pocket, thus permitting the solder-wire, together with someof the rosin, to be deposited directly upon the sheet of tin previouslybent about the mandrel b, one edge of the sheet overlapping the otheredge, as in the patent referred to, one edge of the sheet of tin havingpreviously had soldering-fluid applied to it, as has been described. Thehub carrying the cam t has also a cam-roll, 202, (see dotted lines, Fig.2, and full lines, Fig. 1,) which roll at each rotation of the shaft Itacts upon alever, s pivoted at 41, and provided at its outer end with alink, 22, which isjointed to astud, 23, forming part of a collaradjnstably attached to a vertically-reciprocating toothed rack, 8 whichat its upper end engages a pinion, 8, fast toa pawl-carrying disk, 26,provided with a spring-held pawl, 27, that engages a ratchettoothedgear, 28, fast upon the arbor 42, to which is attached the uppermostfeed-roll,s,of a pair of feed-rolls, s s, geared together to be rotatedat the same surface speed, and adapted to feed the soldering-wire 8,contained on the spool 3 for the proper distance, the saidsoldering-wire entering the pocket referred to at the lower side of therosin-holder.

The mechanism for feeding the solderingwire into the pocket to be cutoff is substantially the same in construction as in the said patent, andneed not be herein further described.

In practice the rod t, for lifting the soldercutter, will be surroundedor connected by a suitable spiral or other spring, (not shown,) whichwill normally keep the lever t pressed upward in position to be struckby the cam t.

Each mandrel immediately at its top, where the overlapping edges of thecan-body are to be soldered, is provided with a longitudinal strip, 103,(shown best in Fig. 13,) of aluminum.

Great difficulty has been experienced by the sticking of solder to theedges of the jaws of the former, and many different plans have beentried to obviate it.

It is a great desideratum to hold the sheet of tin between the jaws ofthe former and mandrel as close as possible to the overlapping edges ofthe sheet, and to enable this to be done, and yet not have the solderadhere to the edges of the jaws, I have provided the latter with a thinsheet or layer of aluminum, having found by practice that solder willnot adhere to it, and it is the only metal known to me to which solderwill not stick. After the solder-wire has been deposited upon theoverlapped edge of the sheet of tin just above the aluminum strip 103and between the aluminum-covered edges 162 of the jaws c, the table isunlocked and moved for another step to place the sheet of tin so heldand treated in position to be soldered, and while so held thesoldering-iron h is applied.

The soldering-iron h, heated, preferably, by gas in any usual manner, isattached to one end of a short rod, k secured to a rockshaft, k by ascrew, h, the said rock-sh aft being guided in arms of a bracket, A",bolted to the main frame-work A. The rod It has attached to it ahand-lever, 106, which normally rests upon the locking-lever A beforedescribed, and is raised and lowered by the said locking-lever, thesoldering-iron descending upon the solder as the tube is locked. Theoperator may engage the lever 106 and lift the soldering-iron if desiredtoexamine it, dress it, or examine the work under it. The rock-shaft his provided with two adjustable collars, 88, between which is placed oneend of alever, 89, pivoted at 91 on a cross-bar, 92,"of the saidbracket, the otherend of the said lever having attached to it a rod, 93,connected to an' elbow-lever, 94, pivoted upon an upright, 95, theopposite end of the said lever having adj'ustably connected to it alink, 96, attached to one end of a lever, 97, pivoted at or near itscenter upon thesaid upright 95, the opposite end of the said lever 97having attached to it a link, 98, which is loosely jointed to a lever,99, pivoted at 100 upon a bracket seen-red to the framework, the saidlever being raised at the proper time by a cam, 101, upon thedriving-shaft A The movement of the lever 99 effects the longitudinalreciprocations of the soldering-iron in contact with the can-body, thelever being held down against the said cam by a suitable spring, 102,(see Fig. 18,) thesaid cam having two projections to vibrate the lever99 twice during each rotation of the shaft A To prevent the overrunningof the table a when actuated by the pawl a ,before described, I haveprovided the hub of the ratchet-wheel with a collar, 69, to whichisjointed,bya horizontal pin, 70, an armor lever, 71, which rests upon alever, 72, pivoted at one end, as at 73, upon an ear secured to theframe-work, the outer end of the said lever having attached to it achecking spiral spring, 74, one end of which is in turn fixed withrelation to the frame-work. The le er 72 serves as a rest for the arm orlever 71, the spring 74, by its action upon the said arm or lever 71,keeping it pressed down upon the top of the lever 72, the descent of thesaid lever 72 being, -however,determined bya notched bracket, 75, whichis erected upon the framework. (SeeFigs. 2 and 3.) The lever 72 israised by-a cam, 76, secured to the shaft h. A lever, 77, pivoted at 78on a lug secured to'the frame-work, is also moved by the said cam 76 ina direction to cause it to move the lever 77 in adirection opposite thatof the spring 74.

The cam 76 is so shaped and located upon the shaft h that, while thetable is held stationary by the locking device A before described, thelever 71 is permitted to move under the action of the spring 74, andjustas the end of the lever or arm arrives near the lower end of the bracketA the cam 76 lifts the lever 72 sufficiently to enable it to place theouter end of the arm or lever 71 in line with the lower end of the saidbracket in such position that the bracket, just after the rotation ofthe table is commenced by the pawl a acting upon the ratchet-disk 0?,will strike the arm 71',and thereafter the movement of the table toplace in position the mandrel containing the next sheet of tin to besoldered has to elongate the said "spring 74, thus exerting a forcesuffi-' cient to prevent overrunning of the table owing to momentum. Asthe table arrives in position to have the locking device A engage one ofthe notches 5 in the lever 77, in its forward movement by the cam 76,theroll 88,c arried by the said lever 77, then acting upon the arm or lever71, pushes it away from contact with the bracket A and at the same timeallows the spring 74 to throw it down upon the top of the lever72,whichlever is then lowered sufficiently to place it below the lowerend of the said bracket A ,in which position the arm 71 is swunghorizontally backward by the spring 74.

I have herein shown and described formers having jaws tipped withaluminum and a mandrel having an aluminum strip; but such features arenot herein claimed, as they form the subjeotmatter of anotherapplication, Serial No. 234,766, filed April 14, 1887. I have alsoherein shown a single solderingiron; but in the said application I haveshown two such soldering-irons, one being employed to solder the seamand the other to sweat or set it.

1 claim 1. The slide-plate having the rests m and the feeders m combinedwith the rock-shaft and fingers to keep the sheet of tin down upon therests while the feeders are being moved forward, substantially asdescribed.

2. The slide-plate having rests for the sheet of tin and the feeders mcombined with the secondary feeders 32 and the springs 33 to connectthem with the slide-plate, and with IOC detents to fall behind thesheets of tin as the I feeders m are moved backward, substantially asdescribed.

3. The slide-plate, its rest for the sheet of tin, the feeders m and theedge-elevating plate 44, combined with a creasing device to slightlybend the overlapping edge of the said sheet of tin as it is being passedinto position between the mandreland former, substantially as described.

4. The slide-plate, its rests m for the sheet of tin, and the feeders tomove the said sheet, combined with means, substantially as described,for automatically applying solderingfluid to the said sheet of tin,substantially as described.

5. The slide-plate, its attached feeders, and means, substantially asdescribed, to act-upon and bend upward the overlapping edge of the sheetof tin, combined with a holder for soldering-fluid, and with means fordelivering the said fluid upon the upturned edge of the said sheet,substantially as described.

6. The combination, with the solder-cutter, of a rosin-holder throughwhich the said outter works, whereby rosin is discharged upon thecan-bodyasthe solder-wire is laid thereon prior to being melted,substantially as described.

7. The solder-cutter, combined with the rosin-holder and the movableplate, the latter OOnStituting part of a straightening device for thesolder, substantially as described.

8. The mandrel to hold the can-body, combined with a soldering-iron, andwith means, substantially as described, to move the said solderingironboth vertically and horizontally, substantially as described.

9. The mandrel, the former to grasp the canbody, the rod 1', and dog 82,combined with the upright to release the dog, and with an inclined trackto permit the gradual descent of the said rod and former, substantiallyas described.

10. The mandrel, the former to grasp the can-body, the rod r, and dog82, combined with the upright to release the dog, and with an inclinedtrack to permit the gradual descent of the said rod and former, and withthe inclined lip to act upon the stud of the rod 1* and start the cutterdownward, substantially as described.

11. The rotating table, its series of mandrels, and brackets A, combinedwith an arm, 71, and a spring, 74, the said arm aiding to check theforward movement of the table to prevent overrunning, substantially asdescribed.

12. The rotating table provided with aseries of mandrels and dependingbrackets, and a lever, 72, and acam to move it, combined with the arm 71and spring 74, to operate substantially as described.

13. The rotating table provided with aseries of mandrels and dependingbrackets, and a lever, 72, and a cam to move it, combined with the arm71 and spring 74, and with the lever 77 to move the arm 71, asdescribed.

In testimony WhereofI have signed my name to this specification in thepresence of two subscribing witnesses.

GHARLES W. SLEEPER.

\Vitnesses:

G. W. GREGORY,

NATHAN H. DANIELS.

